Glitching Pulsars: Unraveling the Interactions of General Relativistic and Quantum Fields in the Strong Field Regimes

• 作者: Ahmad A. Hujeirat Ravi Samtaney
• 来源期刊: 现代物理(英文)
• 学科: 地球科学
• 关键词: Relativity: Numerical General Black Hole Physics MAGNETARS Neutron Stars PULSARS SUPERFLUIDITY Superconductivity GLUONS QUARKS Quantum CHROMODYNAMICS (QCD)
• 年，卷（期）: 2019,（14）
• 页码范围: 1696-1712
• 页数: 17页
• 分类号: P14

摘要

In this article we modify our previous model for the mechanisms underlying the glitch phenomena in pulsars. Accordingly, pulsars are born with embryonic cores that are made of purely incompressible superconducting gluon-quark superfluid (henceforth SuSu-cores). As the ambient medium cools and spins down due to emission of magnetic dipole radiation, the mass and size of SuSu-cores must grow discretely with time, in accordance with the Onsager-Feynmann analysis of superfluidity. Here we argue that the spacetime embedding glitching pulsars is dynamical and of bimetric nature: inside SuSu-cores the spacetime must be flat, whereas the surrounding region, where the matter is compressible and dissipative, the spacetime is Schwarzschild. It is argued here that the topological change of spacetime is derived by the strong nuclear force, whose operating length scales are found to increase with time to reach O (1) cm at the end of the luminous lifetimes of pulsars. The here-presented model is in line with the recent radio- and gravitational wave observations of pulsars and merger of neutron stars.